投影寻踪模型在地下水水质评价中的应用  

Application of projection pursuit model to evaluation of groundwater quality

作　　者：叶浩[1] 钱家忠[1] 黄夕川 李友龙 董洪信 

机构地区：[1]合肥工业大学资源与环境工程学院,合肥230009 [2]江苏省水文地质工程地质勘察院,淮安223005

出　　处：《水文地质工程地质》2005年第5期9-12,共4页Hydrogeology & Engineering Geology

基　　金：国家自然科学基金(40202027);霍英东教育基金(91079)

摘　　要：文中分析了常用的水体质量评价模型的缺陷,提出了基于序列二次规划算法SQP(Sequentialquadraticprogramming)的投影寻踪评价模型,并利用多项式插值的方法进行水质分类,取得了符合客观实际的评价结果。某水源地地下水质量评价结果表明:用投影寻踪方法可以揭示高维数据的结构特征;所建立的评价模型不仅简单、直观和易于理解,而且结果合理。为水源地的保护和合理利用提供了决策依据。In this paper, limitations of the traditional models of water quality evaluation are analyzed, and a projection pursuit evaluation model based on sequential quadratic programming algorithms is set forth. Classification of water quality is carried out using a polynomial interpolation method and the results are in a good agreement with the practical situations. The results show that using projection pursuit method can disclose the structure features of the high dimensional data. The evaluation model is simple and easy to understand. The results are valid and provide a decision basis for reasonable protection and utilization of wellfields.

关 键 词：序列二次规划算法 投影寻踪 地下水质量评价 

分 类 号：P641.3[天文地球—地质矿产勘探] P641.2[天文地球—地质学]